Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 515 [Rate centres in NPA 515] [Dial plan for NPA 515]

NXX: 220

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
515-220 A Cambridge IA CMBRIAAB1MD  5852 HUXLEY COMMUNICATIONS COOPERATIVE - IA 632      
515-220 0 Cambridge IA   544H INTEGRATED PATH COMMUNCATIONS, LLC - IA 632   2018-05-14   
515-220 1 Cambridge IA   221F ONVOY, LLC - IA 632   2023-07-22   
515-220 2 Cambridge IA   221F ONVOY, LLC - IA 632   2019-11-28   
515-220 3 Cambridge IA   624H ONVOY SPECTRUM, LLC 632   2024-03-08   
515-220 4 Cambridge IA   5852 HUXLEY COMMUNICATIONS COOPERATIVE - IA 632   2001-11-17   
515-220 5 Cambridge IA   490J DISH WIRELESS, LLC 632   2023-03-01   
515-220 7 Cambridge IA   221F ONVOY, LLC - IA 632   2021-04-16   
515-220 8 Cambridge IA   221F ONVOY, LLC - IA 632   2021-04-16   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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